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Hi idham, Welcome to the R! It will depend on what you want to do with your data. But you can take a look at the packages sp, spdep. And I also recomend the book: R.S. Bivand, E.J...

bryan wrote: > Indeed, there was a bug ... my current play code looks like this ... Hmmmm.... the bug seems to be there, still. > fit<- arima(x.ts, order=c(p,q,d), ***** > seasonal=list(order=c(P,D,Q), > period=frequency...

Hi, First, thank you very much for the answers... I have used the png() function before for generate the image and then capture its bytes. My big problem is that my program reads the image before that its complete by...

Hi guys, I have a data-set that fits well into a Weibull model y = a-b*exp(-c*x^d). I want to estimate the parameters of the coefficients a, b, c and d, given x and y. Can...

Hi! I have a difficulty in the use of function optimize(). Could you help me? I want to maximize this function: ##### Logaritmo da distribui??o condicional de alpha[i] lp_alphai <- function(alphai, i, beta, tau, N){ t1 <- (N[i...

Hi, I have a 100x15 matrix and in each row a set of 15 random numbers out of 25. for example: b <- c(1:25) a <-matrix(0,10,15) for (i in 1:10){ a[i,] <- sample(b,15...

Perhaps too late but as a summary I'd suggest the paper SLUITER, R.; PEBESMA, E. J. Comparing techniques for vegetation classification using multi- and hyperspectral images and ancillary environmental data. International Journal of Remote Sensing, v. 31, n. 23...

Hello! I'm trying to get an array of bytes from graphic images generated by R. Here, you can see my Java code: -------------------------------------------------------------------------------------------------------------------------- Process p = Runtime.getRuntime().exec("C:/Arquivos de programas/R/rw1090/bin/Rterm.exe --no-save"); DataOutputStream...

It's there. Thank you Ben and also Kurt! Best, Marcio Em 4/7/2011 10:19 AM, Marcio Pupin Mello escreveu: > Thanks Ben! I will! > > Em 4/7/2011 8:32 AM, Ben Bolker escreveu: >> Marcio Pupin Mello<mello...

David Winsemius wrote: > > > On Dec 9, 2009, at 12:40 PM, carol white wrote: > >> Hi, >> Is there any equivalent for ifelse (except if (cond) expr1 else >> expr2) which takes an atomic element as argument but returns vector >> since ifelse returns...

You can do it using factor: s0<-factor(0:5) s1<-sample(s0,5,re=T) s1 [1] 0 2 2 4 0 Levels: 0 1 2 3 4 5 table(s1) s1 0 1 2 3 4 5 2...

I think ther's a bug here : bdp wrote: > > Some code I have been playing with to do this follows ... > > get.best.arima<- function(x.ts, minord=c(0,0,0,0,0,0), > maxord=c(2,1,1,2...

I am new in R and i am having trouble here. I?ve already searched in the list but hasn?t helped When i run this script above i get the message "Error in gen[j, i] : incorrect number of...

Dear Simon, Thanks for the quick reply. Unfortunately I don't have access to Pinheiro and Bates. I tried googling the pdSymm and lme but I still cannot get the syntax right. In my model, I only have 1 random...

Hello R-Helpers, I am not sure if it is a very simple question but I would like to use two (...) in a function, for example, this is a script where I would like to input the variable names (in...

Can somebody save-me? Thanks in advance! #R script: #trying to find out how solve a discrete Bayesian Belief Network. #option: using 'catnet' package #BEGIN library(catnet) cnet <- cnNew(nodes = c("a", "b", "c"), cats = list(c("1", "2"), c...

Hi, I am new in R and I don?t know how to sum the product of two elements at the time in a matrix X=[ 1 5 9 13 2 6 10 14 3 7 11 15 4 8...

Hi Tobias, thanks for the help, the code I am using is quite long, but basically what I tried to do was test <- matrix(0,6,1) x <- matrix( c(50,100,200,300,900,2343) ,ncol = 1) for (i...

hello guys, I need to do a BLUP in the simplest model y = Xm + Zg + e however I have missing data in the analysis which I can?t consider as 0(zero). So I need to generate the matrix X...

Great! I was trying "order(my.r)" instead of "order(my.r[])". Thank you Roman! Cheers, Marcio www.dsr.inpe.br/~mello On 11/11/2013 11:15, Roman Lu?trik wrote: > Something like this? > > library(raster) > > my.r <- raster...